{"kind":"host","input":"login.slbenfica.pt","report":{"host":"login.slbenfica.pt","checkedAt":"2026-11-15T18:28:22.241Z","a":{"status":"found","values":["20.190.151.7","20.190.151.9","20.190.151.133","20.190.151.6","20.190.151.132","20.190.151.134","20.190.151.8","20.190.151.68"],"ttl":300,"via":"Cloudflare","cname":["vanity.cpim.aadg.windows.net","vanity.prda.aadg.msidentity.com","www.tm.a.prd.aadg.akadns.net"]},"aaaa":{"status":"found","values":["2603:1036:3000:f8::4","2603:1036:3000:e8::1","2603:1036:3000:f0::1","2603:1036:3000:e8::2","2603:1036:3000:e8::4","2603:1036:3000:f8::1","2603:1036:3000:f8::3","2603:1036:3000:f0::2"],"ttl":300,"via":"Cloudflare","cname":["vanity.cpim.aadg.windows.net","vanity.prda.aadg.msidentity.com","www.tm.a.prd.aadg.akadns.net"]},"verdict":"dual-stack"},"readiness":{"grade":"B","summary":"Works over IPv6, with one gap: its nameservers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"login.slbenfica.pt has 4 IPv6 addresses and answers on every one we tested (4 more not tested).","addresses":[{"address":"2603:1036:3000:f8::4","result":"answers","port":443},{"address":"2603:1036:3000:e8::1","result":"answers","port":443},{"address":"2603:1036:3000:f0::1","result":"answers","port":443},{"address":"2603:1036:3000:e8::2","result":"answers","port":443},{"address":"2603:1036:3000:e8::4","result":"not tested"},{"address":"2603:1036:3000:f8::1","result":"not tested"},{"address":"2603:1036:3000:f8::3","result":"not tested"},{"address":"2603:1036:3000:f0::2","result":"not tested"}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record."},{"key":"dns","label":"Nameservers have IPv6","status":"fail","detail":"No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.","hosts":[{"host":"ns10.ptempresas.pt","ipv6":false},{"host":"ns1.ptempresas.pt","ipv6":false},{"host":"ns2.ptempresas.pt","ipv6":false}]}]},"https":{"status":"fail","problem":"certificate","summary":"The certificate served over IPv6 at 2603:1036:3000:f8::4 isn't valid for login.slbenfica.pt: ERR_TLS_CERT_ALTNAME_INVALID.","hops":[{"url":"https://login.slbenfica.pt/","address":"2603:1036:3000:f8::4","tls":"ERR_TLS_CERT_ALTNAME_INVALID"}]},"receiptId":"7D66DFiVZs","reused":true,"measuredAt":"2026-11-15T18:28:22.872Z"}